any howa/hatsan escort shotgun owners/dealers?

have any escort shotgun owners try to interchange parts with other shotguns?? since they dont seem to sell any of the accessories in the US. i know that knoxx is working on a stock for the escort, but dont know when it will be released. ive heard that remington 870/1100 mag extensions fit on the escort with a spacer, but this have not been confirmed. ive also heard that fabarm shotgun stocks will fit on the escort as well, once again this havent been confirmed.. if there are any dealers that carry the escorts along with other brand, if you guys can try to interchange parts and let us escort owners know?

http://www.hatsan.com.tr/escort_accessories.asp

there are many accessories for the escort that i would be interested in purchasing, and not one of them are available in the US... that sucks..
one thing is for sure, if there were more accessories available for this shotgun, it would for sure sell alot better... the escort pumps run about $100+ cheaper than the mossberg 500 and remington 870, and i havent heard nothing but good reviews on it.